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AFBR-5978Z Datasheet(PDF) 3 Page - AVAGO TECHNOLOGIES LIMITED |
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AFBR-5978Z Datasheet(HTML) 3 Page - AVAGO TECHNOLOGIES LIMITED |
3 / 14 page 3 Pin Descriptions Pin 1 Sda: the data line of the two wire serial interface. This data line should be pulled up with a 4.7k–10k Ω resistor on the host board to a supply of 3.3V ±10%. Pin 2 Rx GND: receiver ground pin. Directly connect this pin to the receiver ground plane of the host board. Pin 3 Rx Vcc: receiver power supply pin. Provide +3.3 V DC via a receiver power supply filter circuit. Locate the power supply filter circuit as close as possible to the Vcc Rx pin. Pin 4 Sd: signal detect pin. If an optical signal is present at the input of the receiver, Sd output is a logic “1”. Absence of an optical signal to the receiver results in a logic “0” output. This signal detect output can be used to drive a LVPECL input on an upstream circuit, such as Signal Detect input or Loss of Signal–bar. Proper LVPECL termination should be in place. See figure 4. Pin 5 Rdata-: receiver data out bar. This data line is a 3.3V LVPECL compatible differential line which should be properly terminated with a 130 Ω pull up to Vcc and 82 Ω pull down to ground. Pin 6 Rdata+: receiver data out. This data line is a 3.3V LVPECL compatible differential line which should be properly terminated with a 130 Ω pull up to Vcc and 82 Ω pull down to ground. Figure 3. Pin Out diagram Pin 7 Tx Vcc: transmitter power supply. Provide +3.3V DC via a transmitter power supply filter circuit. Locate the power supply filter circuit as close as possible to the Vcc Tx pin. Pin 8 Tx GND: transmitter ground. Directly connect this pin to the transmitter ground plane on the host board. Pin 9 Txdis: transmitter disable input. This input is used to shut down the transmitter light output. It is internally pulled up with a ~8 k Ω resistor. Low (0-0.8 V) - transmitter on Between (0.8-2.0 V) - undefined High (2.0-3.63 V) – transmitter off Open – transmitter off Pin 10 Tdata+: transmitter data in. This data line is an AC coupled 100 Ω differential line which does not need any termination at the user SERDES. The AC coupling is done inside the module and therefore not required on the host board. Pin 11 Tdata-: transmitter data in bar. This data line is an AC coupled 100 Ω differential line which does not need any termination at the user SERDES. The AC coupling is done inside the module and therefore not required on the host board. Pin 12 Scl: the clock line of the two wire serial interface. This data line should be pulled up with a 4.7k – 10 k Ω resistor on the host board to a supply of 3.3V ±10%. Sda RxGND RxVcc Sd Rdata- Rdata+ Scl Tdata- Tdata+ Txdis TxGND TxVcc bottom view SC-RJ connector |
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Similar Description - AFBR-5978Z |
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